Oil tool spinner



Jy1,1940. R, PO HE 8 2,208,388

OIL TOOL SPINNER Filed Dec. 11, 1939 2 Sheets-Sheet 1 INVENTOR. a Q. 5?Po THE, F a BY WM.

G. R. POTHE ,3

OIL TOOL SPINNER Filed Dec. 11, 1939 '2 Sheets-Sheet 2 INVENTOR. aFifi.fi. By QEPOT'HE Patented July 16, 1940 UNITED STATES PATENT OFFICE2,208,388.

on. TQOL SPINNER Guy a. Pothe, Fullerton, Calif.

Application December 11, 1939, Serial No. 308,630

, 20 Claims.

This invention relates to oil drilling rigs and hasparticular referenceto a device for facilitating connecting and disconnecting drillingtools, couplings and pipes used in oil drilling.

Machinery used in connection with oil drilling has been so perfected andstandardized, and the methods of handling the various drilling tools andconnections thereof are so well known that no explanation is hererequired, except to mention that the rotary table of such rig is arather elaborate metallic device centrally shaped to receive a masterbushing which, in turn, is recessed to receive a Kelly bushing, both ofwhich devices are commonly employed and well known in the art; I

The object of the present invention is to provide a device which isinterchangeable with such Kelly bushing and which is fitted with a turntable on which toreceive and support the end of a tool, coupling or thelike, to facilitate connection and disconnectionthereof. A furtherobject is to provide means on such table for guiding the end of suchpart resting thereon.

It is customary in present day practice to throw a wooden plank on themetallic table, on which to support such tool or coupling and so as notto damage the'contacting edges of the part While spinning itaround inconnecting or disconnection. In view of this, it is a further object ofthe invention to provide a covering for the device of the invention ofsuch nature that it Will support the end of the part resting thereonwithout damage thereto.

The further objects and the various advantageous features of theinvention will be readily appreciated from the following description,especially when read in connection with the appended drawings, of which:

Fig. 1 is a plan view of the rotary table of a drill rig of anycommercially well known construction, showingthe device of the inventionseated therein;

Fig.. 2 isa cross sectional side elevation of the center portion ofFig. 1. on a larger scale and taken substantially through the centerthereof; Fig. 3 is also a cross sectional side elevation of the centerportion of Fig. 1, and it includes an additional feature not shown inthe foregoing; and v Figs. 4, 5 and 6 are fragmentary side elevations,partly in section, of the upper portion of the device of the inventionand exhibiting further modifications the importance of which will bedescribed presently. I i

This application is a continuation in part of application, Ser. No.283,557, filed by me on July 10, 1939.

The numeral I denotes the rotary table of any commercially well knowntype and which is centrally recessed to receive the usual master bushing 2. The latter, in turn, is centrally perforated at 3 to receive theKelly bushing which guidesthe drilling tool, in operation. No furtherreference is made tothis Kelly bushing, and it is not illustrated,having been-lifted out of the master bush ing to make room for thestructure of the. inven-l tion. The latter is shown' to comprise a baseI0, into which a central stud H is fitted, and this stud serves as apivot'upon which a-disc I2 is seated to rotate. Suitable ball orrollerbear ings l3 are provided between the disc and the baseto take the endthrust'againstthe disc when the weight of a heavy object is imposedthereon. In order to remove the device from the rotary table with ease,it is advantageous to provide on the base In suitable hand grips M.

In operation, a tool, pipe or coupling. is set on end on the disc l2,and it is important to note that the top of this disc isshowncoveredwith-a thick, preferably resilient lining l5, provided for thepurpose of protectingthe end of the part resting thereon from damagewhen the part, together with the disc in the usual manner is spun aroundat high speed to effect connection and disconnection of the partsthereabove. Because the end of the part resting on the disc becomessomewhat imbedded in this lining, it is seen that an additional functionof the lining is to check the tendency of the part resting thereon toslide off the discwhen so rotated. r I

Referring now to Fig. 3, it is noted that, while the base l0 and thedisc 12 may remain as described, the lining l5, of the latter, is showncentraly perforated to receive a pilot [6, rising from the stud IT. Thelower end of this stud may'remain exactly like stud ll of Fig. 1. Thispilot serves as a pivotupon which to guide the end of the drill partseated on the disc and thereby to prevent it from sliding off thespinning disc in case the resilient lining is insufficient to maintainthe part in position. r

At times, while the Kelly bushing is in position, it is required tomount or dismount some part, such as a coupling" or pipe section.To'facilitate such operation, the common method is to drive a spike orother handy element into the derrick flooring to guide the end of suchpart, but this is a very crude method partly because, when the parts arerapidly spun around as required in order to perform the operation, theend of the contacting part chews up the flooring. This may be preventedby raising the parts slightly above I the flooring, and attemptingmanually to guide the parts, an expedient which, however, merely makesthe operation more difficult and increases the labor cost.

In such case, the device of the invention may be placed on the flooringadjacent to the rotary table and the parts to be connected ordisconnected resteddirectly thereon. It is customary I to wind arope,from a capstan onthe floor, around piermanentimethod, :however, is toplace pointed studs :2I in these :perforations, 'as indicated in thedrawings.

suitably cone-shaped. This car: should also be made from s'ofter,preferably resilient material in order that it may serve the doublepurpose of bettermetaining the part in position while at the same timeprotecting it fromdamage.

:A combination :of the foregoing advantageous features is illustrated inFig. 5, where'the disc 'fiS ShOWII cone-shaped; the pilot 26 rises clearof this disc; and the lining 21 offers protection for the part which isseated on the cone and guided by the pilot.

"Frequently, it is required 'to handle large facing tools and the like,and the disc ordinarily used may not be large'enough for this purposeunless the rotary table is large enough to hold an oversize masterbushing. "in such cases, it

I may be necessary to increase the diameter of the disc at thetop,substantially as indicated in Fig. '6, where the disc 31! is shown:made with. a muchilarger top flange 3 l With this --large flange added,:it may "be difiicult 'to :find room for the handles M, .and it may bepreferable to provide indentations the underside ofcthe flange to serveas hand grips. Such indentations are indicated at.

The disc is, in this case also, covered by a resilient lining 33,- forthe purposes specified, and it may be recessed to fitiover the pilot 16of Fig, 3, or the disc I5, of Fig. 2 may be modified-'asflshown in Fig.6 to obtain similar results on .a 'discinot fitted with a pilot.

:Other modifications, within the 5860136 of the appendedlclaims, :may'be incorporated in order better to carry into practice the principlesof the invention, as above outlined.

I'I'claim:

-11. A tool spinner for an oil rig rotary table opening, and a discrotatable on said-base for opening, a stud centrally seated in saidbase,

and a disc rotatable on said stud.

3. A tool spinner for an oil rig rotary table having a central openingfora Kelly bushing, comprising, a base seatable in and closing saidopening, a stud centrallyseated in said base, a disc rotatable on said.stud, and antifriction bearings between said disc and base.

4. A tool spinner for an oil rig rotary table having -a central-.opening for Ta Kelly bushing, comprising, a base seatable :in andclosing said opening, a rotary disc centrally seated in said --base, andantifriction bearings between said disc and the said base.

5. .A tool spinner for an oil rig rotary table having a central openingfor a Kelly bushing, comprising, a base seated in and closing saidopening, a .disc .mounted for rotation on said base,and means on saiddisc for guiding a drill tool or the like placed thereon.

'6. A tool spinner for an oil rig rotary table having a central openingfor a Kelly bushing, comprising, -a base seatable in and closing saidopening, a disc "rotatable on said 'base for sup- "porting the end ofanoil tool or the like, and

athick resilient pad covering the top of said disc.

'7. A tool spinner for an oil rig rotary table having a central openingfor a Kelly bushing, comprising, akbase seatable in and closing saidopening, a" stud centrally seated in said base, a disc rotatable on saidstud, and a thick resilient pad covering the top of said disc.

' 8. A tool spinner for-an oil rig table having a central opening for aKelly bushing, comprising, a base seatable in and closing said opening,a studcentrally seated in said base, a disc rotatable onsaid stud, athick resilient pad covering the top of said disc, and antifrictionbearings between said-disc and the-said base.

9. A tool spinner for an oil rig rotary table. having a central openingfor a Kelly bushing, comprising, a base 'seatable in and closing saidopening, a rotary "disc centrally seated in said base, aresili'entpadcovering the top of said disc, and antifrictionbearingsbetween the tableand disc.

.10. A tool spinner for an oil rig rotary table having a central openingfor a Kelly bushing, comprising, a base seatable in and closing saidopening, a disc mounted for rotation on said base, a resilientpadcovering the top of the disc,

, and means on-said disc for guiding a drill tool or the like placed onend thereon.

l-L A tool spinner ifor an-Oil rig rotary table ing from said disc.

12. A tool spinner for an oil rig rotary table comprising, arbaseseatable in said table, a pivot rising :fromsaid base, a disc rotatableon said pivot, and a centering stud rising from said pivot.

13. A tool spinner for a rotary oil rig comprising,-a base seatable inthe rotary table of the rig, said base being madewith bottom projectionsfor steadyingthe device when set .for use on "the flooring of the rig, adisc rotatable on said base, and centering means rising'from said disc.

14. A .toolspinner for arotary oil rig comprising, .a base seatable inthe rotary table of the rig, said base being made with bottomprojections, for steadying the device when set for use on the flooringof the rig, a disc rotatable on said base, end thrust bearings betweensaid disc and base, and centering means rising from said disc.

15. A tool spinner for the rotary table of an oil rig, comprising, abase seatable in said table, a disc rotatable on said base, a centeringstud rising from said disc, and a cone-shaped centering cap seatable onsaid stud to cover the top of said disc.

16. An oil tool spinner for a rotary drilling table comprising, a baseseatable in said table, and a disc rotatable on said base, said dischaving a cone-shaped top surface.

17. An oil tool spinner for a rotary drilling table comprising, a baseseatable in said table, and a disc rotatable on said base, said dischaving a cone-shaped top surface terminating in a centering stud.

18. An oil tool spinner for a rotary drilling table having a centralopening for a Kelly bushing, comprising, a base seatable in and closingsaid opening, a disc rotatable on said base, the top of said disc beingmade with a large flange to accommodate large facing tools and the like,and a thick resilient pad covering the top surface of said flange.

19. A tool spinner for an oil rig rotary table comprising, a baseseatable in said table, a disc rotatable on said base, said disc havinga larger top flange, a thick resilient pad on top of said disc, andcentering means rising from the disc through said pad.

20. An oil tool spinner for a rotary drilling table comprising, a baseseatable in said table, a disc rotatable on said base, said disc havinga coneshaped top surface, and a resilient pad covering said cone.

' GUY R. POTHE.

